RonnieStein confronts and injures an old colleague in episode 1x13 "The Nuclear Man".
Barry is walking Linda home when he has to save a jumper in episode 1x13 "The Nuclear Man".
Barry goes out on a date with Patty Spivot while still blinded in episode 2x05 "The Darkness and the Light".
The Flash stops the police from injuring someone by shooting through the monster hologram in episode 3x05 "Monster".
Wally heads outside and talks to Jesse about why she is so distant in episode 3x13 "Attack on Gorilla City".
Barry must rely on Ralph's improvisation when they try to stop Null from committing another robbery in episode 4x17 "Null and Annoyed".
Lena invites both Kara and Supergirl to her gala where she lays a trap for the three criminals terrorizing the city in episode 2x05 "Crossfire".
Source: What's Filming
Supergirl arrives to find the gang using an anti-gravity gun during their latest heist in episode 2x05 "Crossfire".
James reveals his face to a panicking woman before heading inside to save her child in episode 3x23 "Battles Lost and Won".
Fake Charlie takes some of his shapeshifter drugs in his car here in episode #204 "Momentum Deferred". On the Hamilton Street side of the library.
Lauren runs into her ex-boyfriend in front of Vancouver's central library.
Interior of the spaceport as seen in episode 1x14 "Blowback".
Joseph and Daniel meet outside this building and decide to get coffee in pilot episode.
Backstrom interviews the victim's ex-girlfriend, Alyson Cox, and finds the laptop she had stolen in episode 1x01 "Dragon Slayer".
Backstrom goes to the psychologist while investigating the murder of a sexual therapist in episode 1x10 "Love Is a Rose and You Better Not Pick It".
Almond and Moto visit the law office where the flowers were sent to the victim from in episode 1x10 "Love Is a Rose and You Better Not Pick It".